ostrum

== Latin == === Etymology === From Ancient Greek ὄστρεον (óstreon, “oyster”). === Pronunciation === (Classical Latin) IPA(key): [ˈɔs.trũː] (modern Italianate Ecclesiastical) IPA(key): [ˈɔs.trum] === Noun === ostrum n (genitive ostrī); second declension the blood of the sea snail variety of Tyrian purple that was red ==== Declension ==== Second-declension noun (neuter). ==== Related terms ==== ostrea ==== Descendants ==== Italian: ostro Spanish: ostro === References === “ostrum”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press “ostrum”, in Charlton T. Lewis (1891), An Elementary Latin Dictionary, New York: Harper & Brothers “ostrum”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.